28 
REPORT ON PAL/ZZONTOLOGY. 
By Aupuyevs Hyatt. 
THE work this year has been mainly directed to the preliminary 
labelling of the newer collections, and the arrangement, concen- 
tration, and labelling of the older collections, with the view of 
bringing together all the fossils of the same genera and species 
within the same period. A large amount of material has been 
handled and arranged. All the collections not thoroughly re- 
viewed last year have been looked over, the labelling revised, 
and the specimens distributed. The contents of the trays, to the 
number of twenty-five hundred, have been put in safe condition 
for storage, and correctly labelled outside. 
The department is indebted to Mr, R. T. Jackson for person- 
ally attending to the details of the work of reviewing collections, 
etc., and thus enabling the Assistant to expend his time upon the 
final arrangement of some collections which were in a sufficiently 
advanced stage of preparation to make such work profitable. He 
has also spent more or less time upon special work in connection 
with his researches upon the Ostreade. The department has 
also received considerable assistance from Mr. Henry Brooks, 
and he has also been engaged in studying the intimate structure 
of the siphuncle in the shells of Nautiloids. 
The Assistant has finished the preliminary arrangement of the 
Trilobites of the Schary collection. All the different collections 
of Trilobites belonging to the Taconic faune have been brought 
together, and incorporated into one collection. The species have 
been identified throughout, with the exception of some from the 
St. John’s group, and a few trays of miscellaneous rough material 
from the same. This part of the collection needs, therefore, only 
a small amount of work by a specialist, in order to be completely 
finished with regard to the naming, and also the final work of 
labelling each specimen, or tray. 
